Pu, Fang
Ren, Weiyan
Fu, Hongyuan
Zheng, Xuan
Yang, Min
Jan, Yih-Kuen
Fan, Yubo
Funding for this research was provided by:
National Natural Science Foundation of China (11672027)
Beijing Municipal Science & Technology Commission (Z171100000517010)
Article History
Received: 10 January 2018
Accepted: 21 April 2018
First Online: 11 May 2018
Compliance with ethical standards
: All procedures performed in studies involving human participants were in accordance with the ethical standards of Beihang University and with the Declaration of Helsinki. Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.